West Ham United Football Club, based in East London, was established in 1895 as Thames Ironworks F.C. by Arnold Hills – owner of the Thames Iron Works and Shipbuilding Company – and foreman Dave Taylor. The original intent behind its formation was to improve the relations between company workers during a period of industrial unrest (source).
The team initially struggled due to inadequate facilities but eventually found success when they won their first trophy, the West Ham Charity Cup, in 1896 (source). In 1900, following disagreements with football authorities regarding player registrations, the club was dissolved before being reformed under its current name, West Ham United F.C., later that same year (source).
Throughout their early years in regional leagues such as Southern League Division One and Western League Division One South (now English Football League), notable players like Syd King - who would later become a celebrated manager - helped cement West Ham's reputation as an up-and-coming team. Their first major achievement came in 1923 when they competed against Bolton Wanderers in the inaugural FA Cup Final held at Wembley Stadium. Although defeated in this match (2-0), it marked an important point for this growing club (source).